What colors of paint did David Alfaro Siqueiros use in his paintings/murals and why?

I need to know what colors he used in his art and why. Dark/light/etc and why he chose those colors. Thanks!What colors of paint did David Alfaro Siqueiros use in his paintings/murals and why?
'Siqueiros's art is one of violent social protest expressed in dynamic, swirling brushwork, dramatic contrasts of light and shade, brilliant colors, and heroic themes. Among his best-known works are murals at the National Preparatory School, Mexico City (1922鈥?4) and for the Plaza Art Center, Los Angeles (1932; destroyed); the mural Portrait of Mexico Today also originally painted in Los Angeles in 1932 is now in the collection of the Santa Barbara Museum of Art. His other major murals include the vast Liberation of Chile, at the Mexican school, Chill谩n, Chile (1942); New Democracy, at the National Institute of Fine Arts, Mexico City (1945); a series at the Polytechnic Institute, Mexico City (1952); and the culmination of his work, The March of Humanity (1968, Hotel de Mexico, Mexico City).'





check out some of his work here and look at the use of color--





http://www.moma.org/collection/browse_re鈥?/a>





the why is in the paragraph above. Also, check this page out:





http://en.wikipedia.org/wiki/Siqueiros





'His accentuation of the angles of the body, its muscles and joints, can be seen throughout his career in his portrayal of the strong revolutionary body. In addition, many works, especially in the 1930s, prominently feature hands, which could be interpreted as another heroic symbol of proletarian strength through work: his self portrait in prison (El Coronelazo, 1945, Museum of Modern Art, Mexico City), Our Present Image (1947, Museum of Modern Art, Mexico), New Democracy (1944, Palace of Fine Arts, Mexico City), and even his series on working class women, such as The Sob.'





'Siqueiros designed one of his most famous works, Portrait of the Bourgeoisie, warning against the duel foes of capitalism and fascism'





'In the early 1930s, including his time spent in the Mexican Lecumberri Prison, Siqueiros produced a series of politically-themed lithographs, many of which were exhibited in the United States..'What colors of paint did David Alfaro Siqueiros use in his paintings/murals and why?
Mostly primary colors because his mother was a kindergarten teacher and he wanted to honor her.

mascara